Integrate the new input method API for Views into Chromium.

views/widget/widget_win.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef VIEWS_WIDGET_WIDGET_WIN_H_
 #define VIEWS_WIDGET_WIDGET_WIN_H_
 #pragma once
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlcrack.h>
 #include <atlmisc.h>
 
 #include <string>
 #include <vector>
 
 #include "base/message_loop.h"
 #include "base/scoped_ptr.h"
 #include "base/scoped_vector.h"
 #include "base/win/scoped_comptr.h"
 #include "ui/base/win/window_impl.h"
 #include "views/focus/focus_manager.h"
+#include "views/ime/input_method_delegate.h"
 #include "views/layout/layout_manager.h"
 #include "views/widget/native_widget.h"
 #include "views/widget/widget.h"
 
 namespace ui {
 class ViewProp;
 }
 
 namespace gfx {
 class CanvasSkia;
@@ skipping 41 matching lines @@
 //
 //  This Widget contains a RootView which owns the hierarchy of views within it.
 //  As long as views are part of this tree, they will be deleted automatically
 //  when the RootView is destroyed. If you remove a view from the tree, you are
 //  then responsible for cleaning up after it.
 //
 ///////////////////////////////////////////////////////////////////////////////
 class WidgetWin : public ui::WindowImpl,
                   public Widget,
                   public NativeWidget,
-                  public MessageLoopForUI::Observer {
+                  public MessageLoopForUI::Observer,
+                  public internal::InputMethodDelegate {
  public:
   WidgetWin();
   virtual ~WidgetWin();
 
   // Returns the Widget associated with the specified HWND (if any).
   static WidgetWin* GetWidget(HWND hwnd);
 
   // Returns true if we are on Windows Vista or greater and composition is
   // enabled.
   static bool IsAeroGlassEnabled();
@@ skipping 104 matching lines @@
 
   // Overridden from NativeWidget:
   virtual Widget* GetWidget() OVERRIDE;
   virtual void SetNativeWindowProperty(const char* name, void* value) OVERRIDE;
   virtual void* GetNativeWindowProperty(const char* name) OVERRIDE;
   virtual TooltipManager* GetTooltipManager() const OVERRIDE;
   virtual bool IsScreenReaderActive() const OVERRIDE;
   virtual void SetNativeCapture() OVERRIDE;
   virtual void ReleaseNativeCapture() OVERRIDE;
   virtual bool HasNativeCapture() const OVERRIDE;
+  virtual InputMethod* GetInputMethodNative() OVERRIDE;
+  virtual void ReplaceInputMethod(InputMethod* input_method) OVERRIDE;
   virtual gfx::Rect GetWindowScreenBounds() const OVERRIDE;
   virtual gfx::Rect GetClientAreaScreenBounds() const OVERRIDE;
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
   virtual void MoveAbove(Widget* widget) OVERRIDE;
   virtual void SetShape(gfx::NativeRegion shape) OVERRIDE;
   virtual void Close() OVERRIDE;
   virtual void CloseNow() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void Hide() OVERRIDE;
   virtual void SetOpacity(unsigned char opacity) OVERRIDE;
@@ skipping 43 matching lines @@
     MESSAGE_HANDLER_EX(WM_MOUSEACTIVATE, OnMouseActivate)
     MESSAGE_HANDLER_EX(WM_MOUSELEAVE, OnMouseLeave)
     MESSAGE_HANDLER_EX(WM_MOUSEMOVE, OnMouseMove)
     MESSAGE_HANDLER_EX(WM_MOUSEWHEEL, OnMouseWheel)
     MESSAGE_HANDLER_EX(WM_NCMOUSELEAVE, OnNCMouseLeave)
     MESSAGE_HANDLER_EX(WM_NCMOUSEMOVE, OnNCMouseMove)
 
     // Key events.
     MESSAGE_HANDLER_EX(WM_KEYDOWN, OnKeyDown)
     MESSAGE_HANDLER_EX(WM_KEYUP, OnKeyUp)
-    MESSAGE_HANDLER_EX(WM_SYSKEYDOWN, OnKeyDown);
-    MESSAGE_HANDLER_EX(WM_SYSKEYUP, OnKeyUp);
+    MESSAGE_HANDLER_EX(WM_SYSKEYDOWN, OnKeyDown)
+    MESSAGE_HANDLER_EX(WM_SYSKEYUP, OnKeyUp)
+
+    // IME Events.
+    MESSAGE_HANDLER_EX(WM_IME_SETCONTEXT, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_IME_STARTCOMPOSITION, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_IME_COMPOSITION, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_IME_ENDCOMPOSITION, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_CHAR, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_SYSCHAR, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_DEADCHAR, OnImeMessages)
+    MESSAGE_HANDLER_EX(WM_SYSDEADCHAR, OnImeMessages)
 
     // This list is in _ALPHABETICAL_ order! OR I WILL HURT YOU.
     MSG_WM_ACTIVATE(OnActivate)
     MSG_WM_ACTIVATEAPP(OnActivateApp)
     MSG_WM_APPCOMMAND(OnAppCommand)
     MSG_WM_CANCELMODE(OnCancelMode)
     MSG_WM_CAPTURECHANGED(OnCaptureChanged)
     MSG_WM_CLOSE(OnClose)
     MSG_WM_COMMAND(OnCommand)
     MSG_WM_CREATE(OnCreate)
     MSG_WM_DESTROY(OnDestroy)
     MSG_WM_DISPLAYCHANGE(OnDisplayChange)
     MSG_WM_ERASEBKGND(OnEraseBkgnd)
     MSG_WM_ENDSESSION(OnEndSession)
     MSG_WM_ENTERSIZEMOVE(OnEnterSizeMove)
     MSG_WM_EXITMENULOOP(OnExitMenuLoop)
     MSG_WM_EXITSIZEMOVE(OnExitSizeMove)
     MSG_WM_GETMINMAXINFO(OnGetMinMaxInfo)
     MSG_WM_HSCROLL(OnHScroll)
     MSG_WM_INITMENU(OnInitMenu)
     MSG_WM_INITMENUPOPUP(OnInitMenuPopup)
+    MSG_WM_INPUTLANGCHANGE(OnInputLangChange)
     MSG_WM_KILLFOCUS(OnKillFocus)
     MSG_WM_MOVE(OnMove)
     MSG_WM_MOVING(OnMoving)
     MSG_WM_NCACTIVATE(OnNCActivate)
     MSG_WM_NCCALCSIZE(OnNCCalcSize)
     MSG_WM_NCHITTEST(OnNCHitTest)
     MSG_WM_NCPAINT(OnNCPaint)
     MSG_WM_NOTIFY(OnNotify)
     MSG_WM_PAINT(OnPaint)
     MSG_WM_POWERBROADCAST(OnPowerBroadcast)
@@ skipping 34 matching lines @@
                                           WPARAM w_param,
                                           LPARAM l_param);
   virtual void OnEndSession(BOOL ending, UINT logoff);
   virtual void OnEnterSizeMove();
   virtual LRESULT OnEraseBkgnd(HDC dc);
   virtual void OnExitMenuLoop(BOOL is_track_popup_menu);
   virtual void OnExitSizeMove();
   virtual LRESULT OnGetObject(UINT uMsg, WPARAM w_param, LPARAM l_param);
   virtual void OnGetMinMaxInfo(MINMAXINFO* minmax_info);
   virtual void OnHScroll(int scroll_type, short position, HWND scrollbar);
+  virtual LRESULT OnImeMessages(UINT message, WPARAM w_param, LPARAM l_param);
   virtual void OnInitMenu(HMENU menu);
   virtual void OnInitMenuPopup(HMENU menu, UINT position, BOOL is_system_menu);
+  virtual void OnInputLangChange(DWORD character_set, HKL input_language_id);
   virtual LRESULT OnKeyDown(UINT message, WPARAM w_param, LPARAM l_param);
   virtual LRESULT OnKeyUp(UINT message, WPARAM w_param, LPARAM l_param);
   virtual void OnKillFocus(HWND focused_window);
   virtual LRESULT OnMouseActivate(UINT message, WPARAM w_param, LPARAM l_param);
   virtual LRESULT OnMouseLeave(UINT message, WPARAM w_param, LPARAM l_param);
   virtual LRESULT OnMouseMove(UINT message, WPARAM w_param, LPARAM l_param);
   virtual LRESULT OnMouseRange(UINT message, WPARAM w_param, LPARAM l_param);
   virtual LRESULT OnMouseWheel(UINT message, WPARAM w_param, LPARAM l_param);
   virtual void OnMove(const CPoint& point);
   virtual void OnMoving(UINT param, LPRECT new_bounds);
@@ skipping 86 matching lines @@
   // layered windows only.
   void RedrawLayeredWindowContents();
 
   // Responds to the client area changing size, either at window creation time
   // or subsequently.
   void ClientAreaSizeChanged();
 
   // Overridden from NativeWidget.
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
 
+  // Overridden from internal::InputMethodDelegate
+  virtual void DispatchKeyEventPostIME(const KeyEvent& key) OVERRIDE;
+
   // A delegate implementation that handles events received here.
   internal::NativeWidgetDelegate* delegate_;
 
   // The following factory is used for calls to close the WidgetWin
   // instance.
   ScopedRunnableMethodFactory<WidgetWin> close_widget_factory_;
 
   // The flags currently being used with TrackMouseEvent to track mouse
   // messages. 0 if there is no active tracking. The value of this member is
   // used when tracking is canceled.
@@ skipping 65 matching lines @@
   // The current position of the view events vector.  When incrementing,
   // we always mod this value with the max view events above .
   int accessibility_view_events_index_;
 
   // The last cursor that was active before the current one was selected. Saved
   // so that we can restore it.
   gfx::NativeCursor previous_cursor_;
 
   ViewProps props_;
 
+  scoped_ptr<InputMethod> input_method_;
+
+  // Indicates if the |input_method_| is an InputMethodWin instance.
+  bool is_input_method_win_;
+
   DISALLOW_COPY_AND_ASSIGN(WidgetWin);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_WIDGET_WIDGET_WIN_H_